Cerebral Arteriovenous Fistula
How is a cerebral arteriovenous fistula diagnosed?
Diagnosing an arteriovenous fistula may involve the following:
- Physical examination. Allowing the doctor to identify whether there is a characteristic "thrill" (vibration) or bruit (whooshing sound) over the affected area during a physical examination.
- Imaging tests. These include ultrasound, CT scans, and MRI to help visualize the abnormal connection between the artery and vein.
- Catheter angiography. This involves injecting a contrast dye into the blood vessels to provide detailed images of the vascular system.
How is a cerebral arteriovenous fistula treated?
Treatment for an arteriovenous fistula depends on the severity and location of the fistula:
- Observation. Small, asymptomatic AVFs may simply be monitored regularly without immediate intervention.
- Surgery. Surgical intervention may be required to repair or remove the fistula, especially if it is causing significant symptoms or complications.
- Endovascular therapy. Minimally invasive procedures like catheter embolization can be used to block the abnormal connection.
- Medication. Medications may be prescribed to manage symptoms or complications such as heart failure or blood clots.
This page has been reviewed by our medical content reviewers.
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